Rest bar and guide box for metal-rolling mills



L. YOUNG Nov. 20, 1928.

REST BAR AND GuIDnBox Fon METAL ROLLING MILLS Filed April 9, 1927 Patented Nov. 20, 1928.-

1,692,788 PATENT oFF-ic LAFAYETTE YOUNG, OF ALTON, ILLINOIS, ASSIGNOR TO LACE-.EDE STEEL COMPANY, y

0F ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

Application filedl April 9,

This invent-ion relates generally to improvements in millsy of the typeused in rolling metallic bars, and particularlyv to improved rest bars and guide boxes for this type of mill, together with improved means for securing the guide boxes to the rest bars.

Prior to this invention guide boxes were secured to the associa-ted rest bars by means of bolts and nuts, and as it frequently happens that the position of a guide box of a mill must be shifted with great rapidity during theoperation ofthe mill, it was found that much valuable time was wasted in unscrewing a number of nuts so that bolts could i be removed to permit movement of the guide box. Thisdiificulty was increased by the fact that the nuts and bolts usually became corroded after a; comparatively short Ytime in use, and as a result the task of removingy said nuts and the' timed required for such removal were materially increased.

The predominant object of the present invention is to produce rest` bars and guide boxes which are so constructed that the guide boxes may be secured to the rest bars in a manner to cause same to be very rigidly maintained in position and to permit. of very rapid shifting of the positions of the guide boxes when desired, whereby the dilliculties encountered in the use of the fastening devices formerly used are eliminated. y

Fig. I is a plan view of a fragment of a rest bar and a guide box constructed and secured together in accordance with my invention.

Fig. II is a cross section on the line II-II of Fig. I.

In the drawing, which embodies one form of my invention, 'I designates a rest bar, a portion of which is broken away to conserve space, said rest bar being provided with a plurality of apertures 2 formed therethrough. The apertures 2 shown in the drawing are rectangular in shape, but it is obvious that this particular shape need not be adhered to, as apertures of other shapes may be employed if desired. The rest bar l is provided with an upwardl extended portion 3 at one of its longitudinal edges which extends from one end of the rest bar to the opposite end thereof, and the inner wall of said upwardly extended portion is arranged at an angle to the oppositely disposed wall of said portion to provide an inclined face 4.

Supported upon the restbar l is a guide 1927. Serial No. 182288.

box 5 which is provided with the ordinary guiding portion 6 having the usual elongated opening 7 formed therein. vrIlhe yguide box 5 is also provided with a downwardly cxtended portion 8 at its rear end, which por` tion is extended from one end of the guide `box to the other end thereof. The forward tended portion 8 of the guide boxin contact with the inclined face 4 of the upwardly extended portion 3 of the rest bar l, as shown clearly in Fig. II. "With the parts arranged as described, a plurality of wedge-shaped members 10 are driven into certain of the apertures 2 formed through the rest bar I lto retain the guide box in position. Each of the wedge-shaped members 10 is provided with a straight face 10al and a face 10b which is arranged at an angle to said face 10, and as a member 10 is driven downwardly into an aperture 2 the angular face 10b which is being driven downwardly in contact with the wall of the aperture will. force the guide box, the downwardly extended portion of which is in contact with the straight face 10a of the member I0, forwardly so that. the inclined face 4 of said guide box will be in close contact with the inclined face 9 of the rest bar. The lresult of this will be that the inclined faces 4 and 9 will be interlocked so that the guide. box may not move upwardly without first. be-

-ing moved rearwardly, and the members 10,

which are firmly driven into apertures 2, will prevent this rearward movement.

By referring to Fig. II of the drawing it will be seen that each of the wedge-shaped members 10 is Vprovided with an overhanging head portion 1l, and when it is desired to disconnect the guide box from the rest bar to shift the position of said guide box it is only necessary that the outer end of a crowbar be introduced under the shoulders produced by the overhanging head portions of the wedgeshaped members 10, and said members pried upwardly, thus permitting slight rearward movement of the guide box, whereby said guide box may be adjusted to the desired 5 position on the rest bar and again secured in place, as already described.

While I have illustrated and described the rest bar and guide box arrangement intended for one side only of the rolls of the mill, I desire that it be understood that my invention is applicable to the rest bars and guide boxes employed at both the entry and discharge sides of the rolls.

I claim: i

1. A metal rolling mill comprising a rest bar provided with an aperture, a guide box, said rest bar and said guide box having over lapping portions adapted to prevent upward movement of said guide box relative to said rest bar, and a Wedge-shaped member driven into said aperture in said rest bar in a manner to abut against said guide box and prel vent disengagement of said overlapping portions, said aperture being disposed entirely' below said guide box.

2. A metal rolling mill comprising a rest bar provided with a plurality of spaced apertures, a guide box, said rest bar and said guide box having overlapping portions adapted to prevent upward movement of said guide box relative to said rest bar, and wedge-shaped members driven into said apertures in said rest bar in a manner to abut against said guide box and prevent disengagement of said overlapping portions, said plurality of spaced apertures being disposed entirely below said guide box.

3. A metal rollin()r mill comprising a rest bar having a plura ity of spaced apertures formed through a portion thereof and an upwardly extended portion provided with an inclined face, a guide box provided with a downwardly extended portion having an inclined face adapted to cooperate with the inclined face of said rest bar to prevent upward movement of said guide box relative to said 'rest bar, and wedge-shaped members driven into said apertures in said rest bar in a manner to abut against said guide box` and prevent disengagement of said inclined faces, said wedge-shaped members having overhanging head portions adapted to facilitate easy removal of said members from said apertures, said plurality of apertures being disposed entirely below the downwardly extended portion of said guide box.

In testimony that I claim the foregoing I hereunto aiiix my signature.

LAFAYETTE YOUNG. 

